Answer:
B. 3x = 6
Explanation:
The left side of a hanger is on the left side of the equation, and the right side of a hanger is on the right side of the equation.
There are 3 x's on the left side, so the left side is 3x
The right side shows 6 unit boxes, so the right side is (1 * 6), or 6.
As a result, the equation is 3x = 6, which is B.